工作流系统中基于任务的RBAC控制模型研究

WFM（工作流模型）和RBAC（基于角色的访问控制）模型都包含角色空间和任务空间两个组件，在二者的基础上提出工作流框架下基于任务的访问控制模型（TRBAC）。分析了工作流中的任务空间和RBAC模型中的权限空间，在此基础上研究了任务空间的状态。解决了OA（办分自动化）系统层次空间上多个角色参与的协同工作流状态的判断和转移状况的判断。

A Study on Role-based Access Control Model Based on Task in Workflow System

Workflow Model （WFM） and role-based access control （RBAC） include role space and task space two components. Based on both components and workflow framework, a model called task-based access control model （TRBAC） is proposed. Task space of workflow and allowable space of RBAC were analyzed, then task based on it was introduced. Finally, state judgement and state transfer of hierarchical space which included multiple roles participating in cooperative work are solved.